SME 60 external etalon

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Merlin66
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SME 60 external etalon

Post by Merlin66 »

Still looking for a SME60 etalon with Tmax tuning.
Can you help??


"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
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"Astronomical Spectroscopy for Amateurs" and
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